A: An increased concentration of salt in soil inhibits plant growth, eventually leading to plant death, and high salinity in soil is a major issue facing the agriculture industry. However, there is a subset of plants called halophytes that have adapted to growing in high-saline areas.
By 18 months, your toddler will probably start making many common consonant sounds, such as t, d, n, w, and h. Learning to make these sounds is a watershed event, one that leads to the rapid vocabulary spurt that most children go through at this stage. Don't expect to hear all these sounds in actual words yet.
At the start of this period, most kids can follow directions and say 50 or more words. Many combine words in short phrases and sentences. By age 3, a toddler's vocabulary usually is 200 or more words, and many kids can string together three- or four-word sentences. Kids at this stage of language development can understand more and speak more clearly. By now, you should be able to understand about 75% of what your toddler says.